3.4 Enhance logging and modular chart system for Crypto Trading Bot Dashboard

- Suppressed SQLAlchemy logging in `app.py` and `main.py` to reduce console verbosity.
- Introduced a new modular chart system in `components/charts/` with a `ChartBuilder` class for flexible chart creation.
- Added utility functions for data processing and validation in `components/charts/utils.py`.
- Implemented indicator definitions and configurations in `components/charts/config/indicator_defs.py`.
- Created a comprehensive documentation structure for the new chart system, ensuring clarity and maintainability.
- Added unit tests for the `ChartBuilder` class to verify functionality and robustness.
- Updated existing components to integrate with the new chart system, enhancing overall architecture and user experience.

components/charts/layers/__init__.py

@@ -0,0 +1,24 @@
+"""
+Chart Layers Package
+
+This package contains the modular chart layer system for rendering different
+chart components including candlesticks, indicators, and signals.
+"""
+
+# Package metadata
+__version__ = "0.1.0"
+__package_name__ = "layers"
+
+# Layers will be imported once they are created
+# from .base import BaseCandlestickLayer
+# from .indicators import IndicatorLayer
+# from .subplots import SubplotManager
+# from .signals import SignalLayer
+
+# Public exports (will be populated as layers are implemented)
+__all__ = [
+    # "BaseCandlestickLayer",
+    # "IndicatorLayer",
+    # "SubplotManager",
+    # "SignalLayer"
+]